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| London Transport (uk.transport.london) Discussion of all forms of transport in London. |
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#1
January 17th 08, 02:45 PM
posted to uk.transport.london, uk.railway
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North London Line AC/DC question
Why do the trains on the NLL switch over to 25Kv AC at Hackney Wick and then switch back to DC at Dalston when the 3rd rail is continuous along that section anyway? Why not just stay on DC and save the wear and tear on the pantograph? B2003 |
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